Search a number
-
+
20013002312 = 2329711214971
BaseRepresentation
bin10010101000110111…
…100010111001001000
31220122201222212001212
4102220313202321020
5311441312033222
613105512032252
71305640466342
oct225067427110
956581885055
1020013002312
11853a8aa936
123a66392688
131b6c2aac04
14d7bd0c292
157c1e886e2
hex4a8de2e48

20013002312 has 32 divisors (see below), whose sum is σ = 39365092800. Its totient is φ = 9525364800.

The previous prime is 20013002291. The next prime is 20013002363. The reversal of 20013002312 is 21320031002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591014 + ... + 623957.

It is an arithmetic number, because the mean of its divisors is an integer number (1230159150).

Almost surely, 220013002312 is an apocalyptic number.

It is an amenable number.

20013002312 is a deficient number, since it is larger than the sum of its proper divisors (19352090488).

20013002312 is a wasteful number, since it uses less digits than its factorization.

20013002312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215077 (or 1215073 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20013002312 its reverse (21320031002), we get a palindrome (41333033314).

The spelling of 20013002312 in words is "twenty billion, thirteen million, two thousand, three hundred twelve".

Divisors: 1 2 4 8 29 58 71 116 142 232 284 568 2059 4118 8236 16472 1214971 2429942 4859884 9719768 35234159 70468318 86262941 140936636 172525882 281873272 345051764 690103528 2501625289 5003250578 10006501156 20013002312